
Control arms generally do not need to be replaced unless there is impact deformation, cracks, or other special circumstances that necessitate replacement. Below is relevant information: 1. The specific function of control arms: The control arm in a car serves as the guide and support for the suspension. Its deformation affects wheel alignment, reducing driving stability. If there is an issue with the front control arm, symptoms may include steering wheel wobbling, the vehicle pulling to one side when the steering wheel is released, and difficulty maintaining direction at high speeds. If these symptoms are not obvious, replacement may not be necessary, and a four-wheel alignment may suffice to stabilize the steering. 2. Connection between the chassis and wheels: In a bicycle, the frame and wheels are rigidly connected, making for a very bumpy and uncomfortable ride on uneven roads. In cars, control arms are designed with flexible connections and include shock absorption mechanisms, significantly improving comfort on rough roads and enhancing the vehicle's handling stability.


